Oracle Linux 6 : dhcp (ELSA-2010-0923)

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The remote Oracle Linux host is missing one or more security updates.

Description :

From Red Hat Security Advisory 2010:0923 :

Updated dhcp packages that fix one security issue are now available
for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.

The Dynamic Host Configuration Protocol (DHCP) is a protocol that
allows individual devices on an IP network to get their own network
configuration information, including an IP address, a subnet mask, and
a broadcast address. DHCPv6 is the DHCP protocol version for IPv6
networks.

A NULL pointer dereference flaw was discovered in the way the dhcpd
daemon parsed DHCPv6 packets. A remote attacker could use this flaw to
crash dhcpd via a specially-crafted DHCPv6 packet, if dhcpd was
running as a DHCPv6 server. (CVE-2010-3611)

Users running dhcpd as a DHCPv6 server should upgrade to these updated
packages, which contain a backported patch to correct this issue.
After installing this update, all DHCP servers will be restarted
automatically.

See also :

https://oss.oracle.com/pipermail/el-errata/2011-February/001843.html

Solution :

Update the affected dhcp packages.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.6
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Oracle Linux Local Security Checks

Nessus Plugin ID: 68151 ()

Bugtraq ID: 44615

CVE ID: CVE-2010-3611